Horse hay-rake



Q (No Model.)

, 0. HYATT.

HORSE HAY RAKE.

N0. 471,239. Patented Mar. 22, 1892.

'SEIKKQE a 5 ea 'Exw rma:

UNrrn TATES ATENT OFFICE.

CHARLES M. HYATT, OF MINNEAPOLIS, MINNESOTA.

HORSE HAY-RAKE.'

SPECIFICATION forming part of Letters Patent No. 471,239, dated March22, 1892.

Application filed November 30, 1891. Serial No. 413,553. (No model.)

To all whom it may concern:

Be it known that I, CHARLES M. HYATT, of Minneapolis,- in the county ofHen nepin and State of Minnesota, have invented certain Improvements inHorse Hay-Rakes, of which the following is a specification.

My invention-relates to wheeled horse hayrakes, and especially to meansfor yieldingly securing the rake-teeth and at the same time looking themfirmly.

The object of the invention is to provide a more simple and durablespring connection for each tooth, whereby the teeth are made Whollyindependent of one another, and, further, to reduce the cost ofhay-rakes.

To this end my invention consists, in general, in the constructions andcombinations hereinafter described, and particularly pointed out in theclaims.

The invention will be more readily understood by reference to theaccompanying drawings, forming a part hereof, in which Figure 1 is asectional elevation of a hayrake embodying my invention. Fig. 2 is aside elevation of one of my devices adapted to yieldingly secure therake-tooth upon the cross-bar of the machine, the cross-bar being shownin section. Fig. 3 is a rear elevation in section on the line m x ofFig. 2. Fig. 4 is a horizontal section of the upper casting of thedevice on the line y y of Fig. 2, the hook being removed. Fig. 5 is aplan view of the lower casting detached.

My invention may be employed upon any hay-rake having a cross-bar 2, andI will not therefore particularly describe the construction andoperation of the machine shown in Fig. 1. The rake-teeth 3 are of theusual form, the upper ends thereof being provided with the extreme ends4, bent at right angles to the same'and adapted to occupy horizontalpositions. These ends are in practice about two inches long, and each isheld within a sleeve 5, formed integrally with and upon one side of thecasting 6. The rake-tooth 3 is prevented from moving sidewise, so as todisengage the end 4: from the sleeve, by means of the lug 7, provided onthe other side of the casting 6 and extending up to or above the top ofthe tooth-rod. I do not rely upon the spring of the tooth itself,butarrange a spring in connection with the hinge, whereby the tooth ispermitted a much greater vertical movement.

The rear portion of the casting 6 is provided with the vertical lug 8,upon which the rod 3 is adapted to rest, and, further, the casting hasthe rearwardly-projecting guide lug or ear 9, which has the hole 10, andis situated at one side of the tooth, the near edge of the hole beingsubstantially in line with the inner side of the tooth. As shown in Fig.2, this casting 6 is secured upon the cross-bar2 by the bolt 11, whichpasses down through a centrally-arranged hole. therein and is secured onthe under side of the nut 12. The casting 6 has the lugs or dependingshoulder 13 and let to engage the forward and rear sides of the bar2andadapted to prevent the twisting of the casting thereon. Underneath thebar 2, and also secured by the nut 12, I also provide the smallercasting or plate 15, hav ing the hole 16 for the bolt and the shoulderor lug 17 to engage the rear side of the bar, as shown. This plate isprovided with the lug 17 which is thrown down or formed beneath the lineof the plate and also to one side of the center thereof, so that thehole 18 in the lug is practically concentric with that numbered 10 inthe upper one. The hook 19, having its top strengthened by the rib20,'is adaptedto engage the upper side of the rod and has the long shank21 passing down through the openings 10 and 1S and Whereon the coiledspring '22 is arranged between the washers 23 and 24. The spring issecured by means of the spring-pin 25, arranged beneath the lower washer24. There are several holes to receive this pin, so that the tension ofthe spring may be adjusted as desired. Upward movement of the rake-toothis under ordinary circumstances prevented 'by the tension of the spring22 acting upon the same through the hook 19; but upon an unusual strainthe tension of the spring 22 yields to that of the tooth, therebyallowing the tooth to move upward and pass over an obstacle on theground. The lower endof the shank 21 is provided with the T-head 27,adapted to engage the lower side of the lug l7 and limit the verticalmovement of the hook. This prevents removal of the shank and alsoresultsin saving the life of the spring. Notches 28 are provided in thelower casting at the sides of the opening 18 to allow the head 27 topass through the same. The upper opening, being larger, is provided onlywith one notch 29. After the hook has been set down over the rod 3 andthe head 27 turned at right angles with the enlarged portions of theopenings it will be seen that the shank cannot be withdrawn. Theadvantages of this construction lie in the ease With which the parts maybe assembled; in the saving of metal, owing to their simple and lightconstruction; in ease with which a tooth may be removed, it being simplynecessary to push up on the lower end of the shank and turn the hookinto line with the end of the rod, after which it may be thrown up intothe dotted position of Fig. 2 and be disengaged therefrom by withdrawingthe end 4 from its sleeve. Its further advantages are strength,durability, and neatness.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- 1. The'combination, with the rake-tooth and thecross-bar, of a sleeve arranged in line with said bar, said rake-toothprovided with an end 4 to be inserted in said sleeve, a lug 7 forholdthe same in place, a spring-hook to engage the rake-tooth, and astopfor limiting vertical movement of said hook, substantially as described.

2. The combination, with the cross-bar 2 and the rake-tooth 3, havingthe end at, of the casting 6, provided with the sleeve 5 and lug 7,means for fastening the same on the top of said bar, a lug 8 for thetooth-rod to rest on, guide-lugs 9 and 17, the hook 19, having the shank21 arranged in openings in said guidelugs, and a spring 22, arrangedbeneath the lug 9 and adapted to hold the hook firmly in engagement withthe rod, substantially as described.

3. The combination, with the casting 6, of the bar 2,whereon the same issecured, means for hinging the upper end of the rake-tooth thereon, thelower casting or plate 15, secured on the lower side of the bar andhaving the lug 17, provided with an opening 18, the upper castingprovided Witha lug 9, having an opening concentric therewith, the hookto engage the tooth and having a shank 21 passing through said opening,a coiled spring arranged about the same, and a pin for securing the sameon said shank, said lugs 9 and 17 being arranged at one side withrespect to the centers of their casting and said castings or platesprovided with lugs or shoulders to engage the sides of said cross-bar,all substantially as described.

1. The combination, with the bar 2, of the tooth 3, having the end 4 atright angles thereto, the casting 6, provided with the sleeve 5, whereinsaid end is contained, a lug 7, provided on the casting to engage thetooth, the lower plate or casting 15, said plates provided with lugs 9and 17, respectively having openings and provided with the T-head 27,said openings provided With the notches to permit the insertion of thehead, shoulder or lugs on said plates or castings to engage the bar 2, aspring 22, arranged on said shank, and a key 25 for fastening the same,said plates being secured on said bar by suitable bolts, substantiallyas described.

In testimony whereof I have hereunto set my hand this 20th day ofNovember, 1891.

CHARLES M. HYATT.

In presence of I. G. IIAWLEY, F. S. LYON.

